Thu, 12 Oct 2000 17:39:47 +0200 wenzelm tuned syms;
Thu, 12 Oct 2000 17:28:18 +0200 wenzelm removed nonsensical print statement;
Thu, 12 Oct 2000 13:01:19 +0200 nipkow induct -> lfp_induct
Thu, 12 Oct 2000 12:26:30 +0200 paulson tidied
Thu, 12 Oct 2000 12:19:15 +0200 paulson new theorem and SD-rule zmod_eq_0_iff
Thu, 12 Oct 2000 12:18:51 +0200 paulson delrules [r_into_rtrancl] required because the new I-rule made a step slow.
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